Firefly Aerospace · 6 days ago
Structural Dynamics Engineer I
Cedar Park, TX
Full-time
Onsite
New Grad, Entry Level
0+ years expFirefly Aerospace is an end-to-end responsive space transportation company focused on enabling launches and operations in space. They are seeking an entry-level Structural Dynamics Engineer to support the analysis, modeling, and verification of launch vehicle dynamic environments, ensuring structural integrity and mission success during dynamic conditions.
AerospaceAir TransportationSatellite Communication
Responsibilities
Perform structural dynamic analyses including:
Modal analysis
Frequency response
Random vibration
Shock response
Vibro-acoustic loading
Develop and maintain finite element models (FEM) for launch vehicle structures and subsystems
Support coupled loads and transient dynamic analyses
Correlate analytical models with test and flight data
Process and analyze vibration, acoustic, and structural response data from:
Environmental tests
Ground tests
Flight instrumentation
Develop scripts and tools for automated data reduction and visualization
Generate PSDs, FRFs, transmissibility, and response spectra
Identify trends, anomalies, and correlation gaps
Assist in deriving and validating:
Random vibration environments
Acoustic environments
Shock environments
Sine vibration profiles
Support the development of qualification and acceptance test levels
Document assumptions, margins, and uncertainties
Support dynamic testing activities including:
Modal surveys
Vibration tests
Acoustic tests
Shock tests
Assist with test planning, instrumentation layouts, and data review
Participate in test execution and post-test analysis
Prepare technical reports, analysis summaries, and presentations
Support design reviews and verification milestones
Communicate results clearly to multidisciplinary teams
Qualification
Required
Bachelor's degree in Mechanical Engineering, Aerospace Engineering, Structural Engineering, Physics, Math, or related field
0-2 years of experience in role/industry
Software/ERP/Computer skills required: Nastran/Femap, Python(pandas, numpy, scipy), MATLAB
Fundamental understanding of: Structural dynamics, Vibrations, Modal analysis, Acoustics
Familiarity with signal processing concepts: FFT, PSD, Filtering, Windowing
Strong analytical and problem-solving ability
Good technical writing skills
Ability to work in a team environment
Willingness to learn and take technical ownership
Preferred
Master's degree in Structural Dynamics, Aerospace, or related field
Internship or project experience in: Launch vehicles, Spacecraft
Aerospace structures
Environmental testing
Exposure to: Vibro-acoustics, Coupled loads analysis, Pyyeti, PyNastran, IMAT, or similar tools, Test correlation
Experience with Git or version control
High attention to detail
Strong work ethic
Curiosity and technical initiative
Comfort working in fast-paced development environments
Interest in spaceflight and launch systems
Company
Firefly Aerospace
Firefly Aerospace is a space company that develops and operates launch vehicles, lunar landers, and orbital vehicles for commercial mission.
501-1000 employees
Funding
Current Stage
Public CompanyTotal Funding
$796.56MKey Investors
Northrop GrummanRPM VenturesAE Industrial Partners
2025-08-07IPO
2025-05-29Corporate Round· $50M
2024-11-12Series D· $175M
Leadership Team
Jason Kim
Chief Executive Officer
Eric Salwan
Co-Founder
Recent News
2026-01-19
Company data provided by crunchbase